Generator for water-gas.



PATENTEDDEO.'17,1907.

F. DANNERT. GENERATOR FORWATER GAS.

APPLICATION FILED AUG. 9, 1906.

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WITNESSES Tn: NDRRIS IirERs cm. wnsnmamu, n. c.

'No. 874,309. PATENTED DEG. 17, 1907.

P. DANNERT. GENERATOR FOR WATER GAS.

APPLIUATION FILED AUG. 9, 1906.

2 BHEETB-SHEET 2- WITNESSES- .1

UNITED sTATEs PATENT OFFICE.

FRITZ DANNERT, OF BERLIN, GERMANY, ASSIGNOR TO JULIUS A. HUTMAOHER, OF BERLIN, GERMANY.

GENERATOR FOR WATER-GAS.

Specification of Letters Patent.

Patented Dec. 17, 1907.

Application filed August 9,1906. Serial No. 329,849.

To all whom tt may concern:

Be it known that I, FRITZ DANNERT, chemist, a subject of the King of Prussia, German Emperor, and residing at No. 30 Spenerstrasse, Berlin, in the Kingdom of Prussia, German Empire, have invented certain new and useful Improvements in Generators for Water-Gas and the Like, of which the following is a specification.

This invention relates to a generator for Water-gas, the lining of which is used for the evaporation and superheating of the liquid or gaseous materials led into the fire-space, the lining being heated by the waste heat of the furnace. At the same time the height of the zones, particularly of the reductionzone, may be limited by lowering the tem perature in'the upper portion of the furnace, or removing part of the hi temperature of that portion respectively, so as to keep the upper portion of the generator at as low a temperature as possible.

In order to make my invention more clear I refer to the accompanying drawings in which similar letters denote similar parts throughout the several views and in which Figure 1 is a vertical section through a generator constructed according to my in vention, and Fig. 2 is a plan of the generator, the cover being removed.

The generator consists, as usual, of an iron mantle provided at its top with a hopper p through which the fuel is introduced into the fire-space of the furnace; there is, further, a fire-brick-lining t, a grate is, an air-supplypipe 7), so arranged as to conduct the air below the grate, and an upper pipe 9 for conducting away the gas produced. Since, in this generator, super-heating devices of the kind employed for steam, for instance coils and the like, are not made use of, and also waterevaporators that are located upon the uppermost portion or head of the generator are dispensed with, because all these means are not considered practicable, the following arrangement has been devised; The refractory-lining, as usually constructed, is replaced for a part of its height through an annular body a referably of cast iron, the thickness of t e walls of which increases from the colder zone to the hotter one. The body a receives the charge of fuel, and the products of combustion come in direct contact With the hollow wall of the body. This provided with a special chamber hollow body is preferably manufactured or cast in such a manner that its interior is pro vided with steps, the arrangement of which is such that thereby the thickness of: the walls is determined.

Upon the body a is located an annular plate 0 by which the inner space of the body a, is closed. This space is connected with a pipe e through which water or steam is made to pass into the said space, that is to say, first through the annular channel 6 formed in that uppermost portion of the body a. This portion is separated from the next por tion, 01. e. from the smaller annular channel a, by an annular plate g. Below the channel 0 is a channel (1 which is separated from c by an annular plate '1". Each of the plates g and 7 has an aperture through which the water or steam may pass from one channel into the next, and the arrangement of said apertures in such that the vapor or steam flows within every consecutive chamber in a direction opposite to that it has had in the preceding chamber. Finally, the steam passes from the channel d throu h a conduit into the space below the grate In case t e generator be used for the production of carbureted gas, the bod a is aving tongues 11;, as shown in dotted lines in Fig. 1.

The carburetin'g means is made to pass into that chamber through the pipe or a erture f, and having made its Way over an along the tongues 10, it gets into a pi e or conduit l'through which it is conducte into an annular conduit m extending around the zone of reduction and having nozzles or the like a terminating into the fire-space at this zone.

The annular late 0 carries referably a similarly shape refractory bo y s also inclosed by the walla and the cover of the same. Owing to the arrangement beforedescribed, the zone of oxidation can rise only to .a certain height, as in the upper portions of the furnace the greatest part of the heat is absorbed by the body a and is employed, when producing the gas, to eva orate and super eat the water or steam le into the channels tities of heat at disposal for the superheating the deeper the steam is conducted within. the body a, the means being formed by the increasing thickness of the walls of said body. Finally, by constructing the furnace in the manner described, the mounting of the fur nace becomes a very convenient one and also repairs may be executed easily and in a short time.

Having now described. my invention what I desire to secure by a patent of the United States is:

1. In a generator for water gas, the combination, with a furnace having a lining of re fractory mai erial, of an annular hollow body supported. on said lining and having its walls decreasing in thickness toward the top of the furnace.

2. In a generator for Water gas, the combi nation with a refractory lining forming the lower portion of the furnace, of a hollow an nular body superposed on said lining and separate therefrom, and. a det aehable annular plate for closing said. body at the top.

3. In a generator for water-gas, the combination, with a hollow body having the interior surfaces of its walls stepped, of plates supported on the steps of said walls and di viding said body into assages or channels.

4. In a generator or Water-gas, a hollow superheating body stepped at the inner surfaces of its Walls.

5. In a generator for Water-gas, the combination, with a refractory lining, of an annular hollow body superposed thereon, the inner surfaces of the walls of said body being stepped, plates supported on the steps of said walls and. dividing said body into pas sages or channels, and. an annular covering plate for said. body.

In testimony, that I claim the foregoing as my invention, I have signed my name in presence of two subscribing witnesses.

FRITZ DANNERT.

Witnesses:

HENRY HAsrER,

WILLIAM MAYNER. 

